document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1138152>Question 1138152</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the length of the period for the following equation: y+1=3cos(pi/4)(x-2).<BR>\n" );
document.write( "Make sure to show work. </SPAN>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+a%2Acos%28b%28x-c%29%29%2Bd ALIGN=MIDDLE  ALT=\"y+=+a%2Acos%28b%28x-c%29%29%2Bd\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "a is the amplitude<BR>\n" );
document.write( "b determines the period: b = 2pi/period<BR>\n" );
document.write( "c is the phase (horizontal) shift<BR>\n" );
document.write( "d is the vertical shift<br><BR>\n" );
document.write( "The given equation, in that form, is<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+3%2Acos%28%28pi%2F4%29%28x-2%29%29-1 ALIGN=MIDDLE  ALT=\"y+=+3%2Acos%28%28pi%2F4%29%28x-2%29%29-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "The period is determined by b; b = 2pi/period.  Since b = pi/4, the period is<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2pi%2F%28pi%2F4%29 ALIGN=MIDDLE  ALT=\"2pi%2F%28pi%2F4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 8 </SPAN>\n" );
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